app/views/teams/users/new.html.erb
<h1 class="usa-display">Add new user to <%= @team.name %></h1>
<%= simple_form_for(@user,
html: { autocomplete: 'off' },
url: team_users_path(@team)) do |form| %>
<%= render 'form', form: form %>
<div class="margin-top-2">
<%= form.button :submit, 'Add', :class => "usa-button" %>
<%= link_to 'Back', team_users_path(@team),
class: 'usa-button usa-button--outline' %>
</div>
<% end %>